What is the airport code for Baltimore, Maryland?

The airport code for Baltimore, Maryland is BWI, which stands for Baltimore/Washington International Thurgood Marshall Airport. This airport is significant as it serves both the Baltimore area and Washington, D.C., making it an important hub for travelers in the Mid-Atlantic region. The "B" represents Baltimore, while the "W" refers to Washington, and the "I" is for International, indicating that it handles international flights as well as domestic ones.

This code is recognized and used widely in the aviation industry and is important for passengers when booking flights or checking luggage. Other options, such as CAE, CHA, and BOS, correspond to airports in different locations: CAE is the code for Columbia Metropolitan Airport in South Carolina; CHA represents Chattanooga Metropolitan Airport in Tennessee; and BOS is the code for Logan International Airport in Boston, Massachusetts. Therefore, BWI is the correct and relevant airport code for Baltimore.